Tata Photon Plus — low internet speed

Address:

Central Delhi, Delhi

Dear Sir,
My name is Aditya Gulati , I had purchase tata photon plus [protected] last month. but the internet surfing and downloading speed that i am getting is very low and not what they advertise. I have complained in the past and they told me that their system is showing good speed on my connection while i am not getting the same speed. Sir either tell them to stop giving wrongful information in advertisement or improve my speed.
Also they told me that the instrument will work all over india, while thats not the case . it is not working in Haryana.
Also they emailed my account information in which they gave me a number to call on in case of any problem which is[protected] which is not correct number.
sir, i would like to disconnect my connection but now that i have bought their instrument , i am stuck.
This is unfair and unexpected from such a reputed company.
my email id is [protected]@rediffmail.com
thankyou